for n in range(2,11):
    print("n=",n)


for m in range(2,11,2):
    print("m=",m)



arr = [1,2,3,4,5,6,7,8,9]

for i in range(0,len(arr),2):
    print("i=",i)
    print("arr[i]=",arr[i])

for i in arr:
    if i%2==0:
        print("i=",i)
    
a = arr.__iter__().__next__()

print("a=",a)
it = arr.__iter__()
b = it.__next__()
print("b=",b)
c = it.__next__()
print("c=",c)